HEATING DEGREE DAY (HDD)


Meaning of HEATING DEGREE DAY (HDD) in English

useful in determining heating energy requirements. Defined as (65 - MT)= HDD,where MT is Mean Temperature (F). If MT is greater than 65 degrees F, HDD=0. MT= Mean (average)Temperature of the day. MT=(High Temperature+Low Temperature)/2

Weather and meteorology English vocabulary.      Английский словарь погоды и метеорологии .